[FFmpeg-devel] [PATCH] lavfi/tinterlace: set inlink->cur to NULL, since it is stored internally

[Stefano Sabatini]

If not set to NULL, the reference is freed by ff_end_frame(), and later
accessed in end_frame() by the filter code, causing a crash.
---
 libavfilter/vf_tinterlace.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/libavfilter/vf_tinterlace.c b/libavfilter/vf_tinterlace.c
index bbc6442..bb5cdc8 100644
--- a/libavfilter/vf_tinterlace.c
+++ b/libavfilter/vf_tinterlace.c
@@ -207,6 +207,7 @@ static int start_frame(AVFilterLink *inlink, AVFilterBufferRef *picref)
     avfilter_unref_buffer(tinterlace->cur);
     tinterlace->cur  = tinterlace->next;
     tinterlace->next = picref;
+    inlink->cur_buf = NULL;
     return 0;
 }
 
-- 
1.7.5.4